User:Ableal

"We throw open our city to the world, and never by alien acts exclude foreigners from any opportunity of learning or observing, although the eyes of an enemy may occasionally profit by our liberality..."

Thucydides, History of the Peloponnesian War, 2.39.1.

https://en.wikipedia.org/wiki/Pericles%27_Funeral_Oration#Content_of_the_speech